Mac Shorty O/R H-Pipe vs. Mac ProChamber!!

What is the difference between these two things? Sound, HP, etc??

I want to get my new exhaust really soon but I need to know what to go with my MAC Long Tubes and flowmaster cat back??

 

If you go with longtube headers you will need a shorty x or h pipe. I have a x-pipe but I've heard h pipes and I think they have more of that old muscle car sound. I'd go with the shorty off road h-pipe.

 

the h pipe is alot deeper. the prochamber sounds like an h in the lower rpm but sounds between an x and h at WOT. i have the o/r prochamber with flowmaster catback and it sounds great. would not change it for anything

 

Do you have any sound clips of what your car sounds like?